Department of Physics, BITS-Pilani, K. K. Birla Goa Campus, Zuarinagar, Goa 403726, India.
Nanotechnology. 2017 Sep 8;28(36):365501. doi: 10.1088/1361-6528/aa7d66. Epub 2017 Jul 4.
In this work, we report on the hydrogen (H) sensing behavior of reduced graphene oxide (RGO)/molybdenum disulfide (MoS) nano particles (NPs) based composite film. The RGO/MoS composite exhibited a highly enhanced H response (∼15.6%) for 200 ppm at an operating temperature of 60 °C. Furthermore, the RGO/MoS composite showed excellent selectivity to H with respect to ammonia (NH) and nitric oxide (NO) which are highly reactive gas species. The composite's response to H is 2.9 times higher than that of NH whereas for NO it is 3.5. This highly improved H sensing response and selectivity of RGO/MoS at low operating temperatures were attributed to the structural integration of MoS nanoparticles in the nanochannels and pores in the RGO layer.
在这项工作中，我们报告了基于还原氧化石墨烯（RGO）/二硫化钼（MoS）纳米颗粒（NPs）的复合薄膜的氢（H）传感行为。在 60°C 的工作温度下，RGO/MoS 复合材料对 200ppm 的 H 表现出高度增强的响应（约 15.6%）。此外，与高度反应性气体种类氨气（NH）和一氧化氮（NO）相比，RGO/MoS 复合材料对 H 具有优异的选择性。该复合材料对 H 的响应是 NH 的 2.9 倍，而对 NO 则是 3.5 倍。RGO/MoS 在低工作温度下具有如此高的 H 传感响应和选择性，这归因于 MoS 纳米颗粒在 RGO 层的纳米通道和孔隙中的结构集成。
